I changed my sparkplugs yesterday in my 84 325e. It had Bosch WR9LP that came with the car when I bought it and I put in NKG ZGR5A nickel. I have no idea how long the Bosch had been in it and it was running fine. And it seems to be running fine with the new ones, in the 10 miles or less I've put on it.
What I'm wondering is if there is anything the look of the old plugs can tell you about my eta engine.

GEDC0004 by Michael A2012, on Flickr
1-3

GEDC0010 by Michael A2012, on Flickr
4-6

GEDC0009 by Michael A2012, on Flickr
Thanks
What I'm wondering is if there is anything the look of the old plugs can tell you about my eta engine.

GEDC0004 by Michael A2012, on Flickr
1-3

GEDC0010 by Michael A2012, on Flickr
4-6

GEDC0009 by Michael A2012, on Flickr
Thanks
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